Signature validation

Check whether a digital signature is valid

Add a signed file to 1DOX and see, for every signature, who gave it, when, and whether it is a valid qualified signature.

Legally equal to a handwritten signature in every EU country (eIDAS QES).

Who signed, when, and whether the signature is valid.

What is checked

1DOX validates every signature with the European Commission's DSS library against the EU trusted lists: whether the certificate was valid at the time of signing, whether it was issued by a qualified trust service provider, and whether the document has changed since.

The result shows the signature's level (for example, qualified signature) and its timestamp.

Which files

ASiC-E (.asice) and BDOC (.bdoc) containers and signed PDF files (PAdES). Every file that reaches 1DOX is checked — files you add and documents signed in 1DOX alike.

Why it matters

Before relying on a contract you received, make sure the signature is genuine and the document unchanged. 1DOX shows clearly when a file is invalid or modified.

Frequently asked questions

Does validation cost anything?
No. Adding a file and validating its signatures is free, on the Free plan too.
Is 1DOX a qualified validation service?
No. 1DOX uses the same EU DSS library and trusted lists, but it is not a qualified validation service provider under eIDAS.

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eIDAS qualified signaturesGDPR compliantDocuments stored in the EU